The art teacher needed 100 sheets each of blue paper, red paper, and green paper. she found paper on sale in one-color packages of 50 sheets for $0.99 and multi-color packages of 225 for $2.99 in the following combinations:
pgk.1: red, blue, yellow
pgk.2: black, green, red
pgk.3: green, orange, white
what is the cheapest way to buy the right amount of paper?

Samson is going shopping for sugar and butter to make three different kinds of cookies: lemon bars, peanut butter cookies, and sugar cookies. the recipe for lemon bars calls for 2 cups of flour, 2 cups of sugar, and 1 stick of butter. the peanut butter cookie recipe calls for 2 cups of flour, 4 cup of sugar and 2 stick of butter. the sugar cookie recipe calls for 1 cup of flour, 2 cups of sugar, and 2 sticks of butter. sampson has 13 cups of flour at home, and he buys 12 cups (6 pounds) of sugar and 10 sticks of butter. how many batches of each type of cookie can he make? samson can make batches of lemon bars, batches of peanut butter cookies, and batches of 09 cookies submit reset

Mr.zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25